Changes in major polyphenolic compounds of tea (Camellia sinensis) leaves during the production of black tea
نویسندگان
چکیده
منابع مشابه
Investigation of Consecutive Separating Arrangements of Bio active Compounds from Black Tea (Camellia sinensis) Residue
Every year lots of black tea (Camellia sinensis (L.) Kuntze) residue will produce in the factories. These residue are unusable whereas the bio active compounds can be extracted and used in the drag and food industries. Due to mentioned problems, this project was conducted years 2011 - 2012 with the aim to make a study on consecutive isolation of all bio active compounds from tea residu...
متن کاملRegulation of formation of volatile compounds of tea (Camellia sinensis) leaves by single light wavelength
Regulation of plant growth and development by light wavelength has been extensively studied. Less attention has been paid to effect of light wavelength on formation of plant metabolites. The objective of this study was to investigate whether formation of volatiles in preharvest and postharvest tea (Camellia sinensis) leaves can be regulated by light wavelength. In the present study, in contrast...
متن کاملAnti-Acanthamoeba effect of Camellia sinensis extract (black and green tea) in vitro
Background: Acanthamoeba is a resistant protozoan that causes severe diseases, such as GAE and CAK. Because many medications are ineffective on the parasite, the quest to find alternative drugs is in progress. Objective: This research was aim 13 ed to assess the performance of the black and green tea extracts on Acanthamoeba. Methods: The clinical isolate of Aca...
متن کاملCadmium and Lead Content in Several Brands of Black Tea (Camellia sinensis) in Iran
ABSTRACT: Tea is one of the most popular beverages in the world and contains several important essential micro nutrients, that are beneficial to human health. The contamination of tea leaves by heavy metals may pose serious problems to human health, because they are not biodegradable and remain in the environment and might enter the food chain. In this study, the concentration of heavy metals; ...
متن کاملIsolation of An Aroma Precursor of Benzaldehyde from Tea Leaves (Camellia sinensis var. sinensis cv. Yabukita).
The cyanoglycoside, prunasin, was isolated for the first time as an aroma precursor of benzaldehyde from fresh tea leaves (Camellia sinensis var. sinensis cv. Yabukita). Prunasin was readily hydrolyzed by a crude enzyme prepared from the fresh tea leaves to liberate benzaldehyde. The isomerization of prunasin under neutral conditions was also recognized.
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ژورنال
عنوان ژورنال: Food Science and Biotechnology
سال: 2016
ISSN: 1226-7708,2092-6456
DOI: 10.1007/s10068-016-0236-y